Home / 12,102.87-16,701.92-6,725.28

Finding the Fourth Proportional to 12,102.87, 16,701.92 and 6,725.28

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Solution

The fourth proportional to 12,102.87, 16,701.92 and 6,725.28 is: 9,280.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,102.87 : 16,701.92 = 6,725.28 : x
  2. Step 2: Convert to fraction form
    12,102.87/16,701.92 = 6,725.28/x
  3. Step 3: Cross multiply
    12,102.87x = 16,701.92 × 6,725.28
  4. Step 4: Simplify right side
    12,102.87x = 112,325,142.76
  5. Step 5: Solve for x
    x = 112,325,142.76/12,102.87
  6. Step 6: Final answer
    x = 9,280.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.